(b.1964) Top Chinese pro, 9 dan in 1983.
http://www.gobase.org/information/players/?pp=Ma%20Xiaochun
http://www.gogameworld.com/gophp/playerinfo.php?name=Ma%20Xiaochun
http://www.hfs.k12.nf.ca/GrassRoots/CulturalJourney/gamego1.html
unkx80: If your browser supports Chinese, you may want to take a look at http://www.wpcx.com.cn/.
If you would prefer something in English, try http://gobase.org/stories/?id=6